import { ViewEngine } from './view-engine';

/**
 * 实体选择视图(左右关系)
 *
 * @export
 * @class PickupView2Engine
 * @extends {ViewEngine}
 */
export class PickupView2Engine extends ViewEngine {
  /**
   * 树导航
   *
   * @type {*}
   * @memberof PickupView2Engine
   */
  public treeExpBar: any = null;

  /**
   * Creates an instance of PickupView2Engine.
   *
   * @memberof PickupView2Engine
   */
  constructor() {
    super();
  }

  /**
   * 初始化引擎
   *
   * @param {*} options
   * @memberof PickupView2Engine
   */
  public init(options: any): void {
    this.treeExpBar = options.treeExpBar;
    super.init(options);
  }

  /**
   * 引擎加载
   *
   * @memberof PickupView2Engine
   */
  public load(): void {
    this.view.viewSelections = [];
    super.load();
    if (this.getTreeExpBar()) {
      const tag = this.getTreeExpBar().name;
      this.setViewState2({ tag: tag, action: 'load', viewdata: this.view.viewparams });
    }
  }

  /**
   *
   *
   * @param {string} ctrlName
   * @param {string} eventName
   * @param {*} args
   * @memberof PickupView2Engine
   */
  public onCtrlEvent(ctrlName: string, eventName: string, args: any): void {
    super.onCtrlEvent(ctrlName, eventName, args);

    if (Object.is(eventName, 'selectionchange')) {
      this.onSelectionChange(args);
    }
    if (Object.is(eventName, 'activated')) {
      this.emitViewEvent('viewdatasactivated', args);
    }
  }

  /**
   * 值选中变化
   *
   * @param {any[]} args
   * @memberof PickupView2Engine
   */
  public onSelectionChange(args: any[]): void {
    this.view.viewSelections = [];
    this.view.viewSelections = [...args];
    const _disabled: boolean = this.view.viewSelections.length > 0 ? false : true;
    this.view.containerModel.view_okbtn.disabled = _disabled;
    if (!this.view.isShowButton) {
      this.emitViewEvent('viewdataschange', [...args]);
    }
  }

  /**
   * 获取树导航
   *
   * @returns {*}
   * @memberof PickupView2Engine
   */
  public getTreeExpBar(): any {
    return this.treeExpBar;
  }
}
